diff --git a/lab5-injections/Dockerfile b/lab5-injections/Dockerfile
index 58a6cc0..259891a 100644
--- a/lab5-injections/Dockerfile
+++ b/lab5-injections/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.7
+FROM alpine:3.21.3
 MAINTAINER Stefan Petrushevski <stefan@zeroscience.mk>
 RUN apk update --no-cache && apk add python3 \
 python3-dev \